etcd: Cross-site request forgery via crafted local POST forms
Published Apr 3, 2018
8.8
HIGHCVSS 3.1
EPSS 1.22%
Description
A cross-site request forgery flaw was found in etcd 3.3.1 and earlier. An attacker can set up a website that tries to send a POST request to the etcd server and modify a key. Adding a key is done with PUT so it is theoretically safe (can't PUT from an HTML form or such) but POST allows creating in-order keys that an attacker can send.
Affected products
-
- Version 3.3.1 and earlierStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Red Hat, Inc. | Etcd | n/a |
|
Configuration 2
- 30
No data.
Red Hat Enterprise Linux 7
etcd
Will not fix
Red Hat Enterprise Linux 7
etcd3
Will not fix
Red Hat OpenShift Enterprise 3
atomic-openshift
Affected
Red Hat Storage 3
etcd
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | etcd | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | etcd3 | Will not fix | n/a |
| Red Hat OpenShift Enterprise 3 | atomic-openshift | Affected | n/a |
| Red Hat Storage 3 | etcd | Will not fix | n/a |
go.etcd.io/etcd/v3
Go
Introduced 0 Fixed 3.4.0
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | go.etcd.io/etcd/v3 | 0 | 3.4.0 |
Remediation
Red Hat mitigation
Configure and enable authentication on the etcd server.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.22% (0.01223) | 67.68th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.22% (0.01223) | 67.43th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.21% (0.00213) | 59.73th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.21% (0.00213) | 58.53th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.26% (0.00261) | 61.99th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.10% (0.01105) | 29.18th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.10% (0.01105) | 0.00th | v1 |
References (11)
- https://access.redhat.com/security/cve/CVE-2018-1098 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1552714 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://github.com/advisories/GHSA-5gjm-fj42-x983 Advisory
- https://github.com/coreos/etcd/commit/a7e5790c82039945639798ae9a3289fe787f5e56
- https://github.com/coreos/etcd/issues/9353 x_refsource_CONFIRMExploitThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/
- https://nvd.nist.gov/vuln/detail/CVE-2018-1098
- https://www.cve.org/CVERecord?id=CVE-2018-1098
Change history (0)
No recorded changes yet.